As a therapeutic modality, ultrasound is a form of heat therapy for soft tissue injuries to minimize swelling and pain, reduce muscle spasms, and expand the range of motion. Creating high frequency sound waves, ultrasound penetrates deep into an injured area, creating heat that pulls blood into the area in order to boost the mending process.
Ultrasound is administered softly with a handheld soundhead, that uses strokes or circles over the affected area. An ultrasound gel might be applied during the ultrasound therapy session. The role of an ultrasound is to speed up your healing process and reduce your pain.
In one study, the adding of ultrasound to exercise therapy for lumbar spinal stenosis relief decreased the amount of analgesic usage by the patients. (1)
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